安装pygame的pip时遇到这种情况怎么解决，还望大神支支招
黄色的是“You are using pip version 9.0.3, however version 18.0 is available. You should consider upgrading via the 'python -m pip install --upgrade pip' command.”
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黄色的是“You are using pip version 9.0.3, however version 18.0 is available. You should consider upgrading via the 'python -m pip install --upgrade pip' command.”